Diodes ZXLD1356/ ZXLD1356Q - Manual (Page 21)

ZXLD1356/ ZXLD1356Q
Document number: DS33470 Rev. 4 - 2
21 of 29
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October 2012
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ZXLD1356/ ZXLD1356Q
A Product Line of
Diodes Incorporated
Application Information
(cont.)
Soft-Start (cont.)
Soft Start Time vs Capacitance from ADJ pin to Ground
-2
0
2
4
6
8
10
12
14
16
0 20 40 60 80 100 120
Capacitance (nf)
So
ft
St
a
rt
T
im
e
(m
s
)
Actual Operating Waveforms [V
IN
= 60V, R
S
= 0.36V, L = 68µH, 22nF on ADJ]
Soft-start operation. LX voltage (Ch2) and Output current (Ch3) using a 22nF external capacitor on the ADJ pin.